> >I think the 1772 is a generally improved version of the 1770, with > >new head stepo rates - I think the 1770 was 6ms, 12ms, 20ms, and 30ms, > >whereas the 1772 is 2ms, 3ms, 6ms and 12ms. Or something like that.
The steprate (and the writeprecompensation) are the only diferences between the 1770 and 1772. > Also, IIRC, the 1770 only handled single density drives. Not true the 1770 can be hardware switched between single and double density as the 1772. > >I think the 1770 and 1772 are pin compatible, but if you can't > >get hold of a 1772, then you ain't gonna get a 1770! Yes they are fully pin compatible. Edwin Blink.
